4-String Banjo Chord Chart and Tabs in Standard Tuning

Gb+7, Gb7♯5, Gb7+5, Gb aug7
Notes: G♭, B♭, D, F♭
6,3,0,7 (21.3)
6,7,8,7 (1243)
6,3,2,5 (4213)
6,9,8,5 (2431)